Neja, Death Artist

Hexproof
Assassins you control have first strike and deathtouch.
Whenever Neja, Death Artist attacks, choose a creature defending player controls. That creature blocks Neja, Death Artist this turn if able, and it blocks alone if able.
If a creature dealt damage by Neja, Death Artist would die, exile it with an art counter on it.
Death is an art, and the body is a canvas.